diff --git a/go.mod b/go.mod
index 2fe34d2..20852a2 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,7 @@
 module github.com/sosedoff/pgweb
 
 go 1.16
+// +heroku goVersion go1.16
 
 require (
 	github.com/BurntSushi/toml v0.3.1
@@ -29,4 +30,4 @@ require (
 	gopkg.in/go-playground/assert.v1 v1.2.1 // indirect
 	gopkg.in/go-playground/validator.v8 v8.18.1 // indirect
 	gopkg.in/yaml.v2 v2.0.0-20160928153709-a5b47d31c556 // indirect
-)
+)
\ No newline at end of file